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Table 1 Descriptive Statistics

From: Impact of methylphenidate formulation on treatment patterns and hospitalizations: a retrospective analysis

Variable

Entire Sample

OROS MPH

TID MPH

p Value

Demographics

    

Mean Age

14.81 (9.55)

14.37 (8.73)

16.62 (12.42)

< 0.0001

Female

23.49%

23.64%

22.88%

0.5849

Region

    

   East

73.60%

75.51%

65.58%

< 0.0001

   South

3.00%

2.95%

3.21%

0.6426

   North Central

1.38%

1.42%

1.21%

0.5869

   West

7.27%

5.02%

16.64%

< 0.0001

HMO Insurance

35.65%

35.72%

35.37%

0.8185

General Health Status

    

Prior number of diagnoses

3.34 (2.91)

3.44 (2.87)

2.96 (3.09)

< 0.0001

Diagnoses

    

Anxiety

0.96%

0.92%

1.13%

0.5174

Depression

1.20%

1.13%

1.47%

0.3336

Oppositional disorder

4.45%

4.56%

3.99%

0.3992

Drug/Alcohol abuse

1.63%

1.65%

1.56%

0.8263

Accident/Injury

7.32%

7.42%

6.93%

0.5690

Medication

    

Concerta

80.57%

100%

0%

NA

Sample Size

5,939

4,785

1,154